Citing prosecutor Miguel Ángel Pech Cen, CNN reported preliminary evidence suggested the bus may have been speeding before it crashed on Tuesday. The driver is currently hospitalized but could face criminal charges upon release.

Eight Americans, two Swedes, a Canadian, and a Mexican citizen were killed when the bus carrying 31 passengers overturned en route to visit Mayan ruins. Among the dead was an 11-year-old boy.

"The Government of the State of Quintana Roo is taking all the necessary measures for the care of the victims and their families, as well as establishing the appropriate measures to clarify the facts. For its part, the State Secretariat of Tourism has been in permanent contact with the Consular offices to help in communication with the families of the victims and injured, including citizens of the United States, Sweden and Brazil."

Royal Caribbean officials confirmed 27 of the bus riders were passengers from two Royal Caribbean cruise ships -- the Serenade of the Seas and the Celebrity Equinox.

The Celebrity Equinox left Port Miami on Saturday while the Serenade of the Seas left Fort Lauderdale, Fla., on Friday, CNN reported. The ships arrived in Mexico on Tuesday.

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